Improved brick-machine



l H. MARTIN. Brick, Machinel` Patented june 27, 1865.Y

- NQ. :48AM v uml.

y Uhurr'zn STATES i PATENT ,{OFFIcEi "HENRY ivmnirin, or SPRINGFIELD, MAssAoiiusnrfrs.` L

'j |MPROVEDBRICK-MACHINE;

Specification forming part of Letters Patent No. 448,419, dated .Tune 27, 1865.

balliohom rit-may concern: 4

Be it'known lthat 1 HENRY MARTIN, of Springfield', in the Acounty .of- Hampden and State of Massachusetts, have invented a new landImproved Brick-Machine5fa-ndl do here-v by declare that the followingjs a full, clear,

cured 1n a revolving-shed; andeteriiaid"die` char'gedon a'grate which forms the' bottom ofY "a box in which the plunger moves. By thea'cde claycistewprred .bye seriesotnives Se-.l

Ition-.ofthe plunger the clay is forced through the grate intothe molds, which are fedto the Vmachine through a lateral opening and brought under the grate bythe action of a pusher working on a rollerplatform and operated by a suitable lever arrangement. t

The invention consists in a peculiar mechanism for operating the plunger and the gate which cuts off or `opens the communication be# tween the box for tempering the clay and the press-box-.f- Said mechanism is so constructed that itoccasions thefleast possible loss by friction, an`dthat the motion of the plunger-can be regulated according to the thickness ofthe bricks tothe made. The pressbcx is provided with a slide through which stones and 'otherl impurities-.can bemade to dischargeirom the" press-box at any' moment. The pusher, which serves to' 'bring the molds under the grate, is operated by a handleversecured to a rock-` shaft.. From-this rock-shaft extend two arms, k which connect by suitable links with the pusher in such 'a manner that by imparting to the rockshaft an oscillatingmotion thepusher is moved back and forth on the rollermplatform and the molds are carried in the desired position nnd-er the grate.

A represents a box, made of woodor any l other'suitable material, and of anyfsuitable size and shape. Thron gh the center of this box' extends a vertical shaft,B,to which a rotary motion is imparted by a'suitable lever, andfby horse or anyrother desirable' power. Said shaft is armed with a series of arms or knives, a,

which serveto` mix or temper the clay, and

curved scoops b, inserted iu the lower end of said shaft, force the tempered clay outinto the press-box The bottom of thispress-box ,is formed ,by a grate, c, the bars of which are at such a distanceapart that they correspond to the partitions of the molds.

through the spaces between the grate-barsinto the molds. These molds are made of wood or any other suitable material, and they rest upon a roller-platform, D, as clearly sho-wn in`- Fig. 2 ofthe drawings. A pusher, E, carriesthe molds under the grate. Thisl pusher is operaxle, i', audit turns loosely on thesame, motion being imparted "to it by a slotted arm or lever, i2, which also turns loosely on the axle or pin i. An oscillating motionis imparted to the lever fr? by a crank, F', the'crank-pin of which passes through the slotin said. lever, and

*the motionof the lever is transmitted tothe the Wheel 'cron either side of thelevefiz.

ln order to regulate the motion of the cogcfs et-screws i5, and it is provided with a slot,

so that it'can be moved up ordown and adjusted in any desired position. When' the slide is depressed toits lowest position it fills up 'the space between the' pins i3, and the iullmotion of the lever i2 is transmittedto the cogfxyheelc', and through it and thejrack ,7i to the plunger,

A plunger, d, which is fitted inthe press-box, forces the clayV atedbra heed-.leven l", th etismouniedtopthe end' of a rooklshaft, c, and from said rock-shaft imparted by a'cogwhe'el or toothed segment, l. u 'Thecog-Wheel 'i is'mounted oula -stationary wheel i bymeans of' two pins, f3, inserted into' wheel i, the'pin's i3 are placed at such a distance jgatej, has its hearings on a pin, Z3, secured. in

the side ot' the mixing-box A, and it is rigidly connected to a slotted arm or lever, Z2, the slot of which straddles the crank-pin of the crankl F the same as thevslot in the lever i2. The lever Z2, however, is not adjustable, and the stroke y of' the gate remains unchanged, no matterwhat the size of the bricks to be produced. v

By observing the relative-positions ot' the levers Z2 Z2 it will be seen that the stroke of the gate is somewhat larger than that of the plunger, and said plunger begins to rise somewhat ahead of the gate, so that no fresh clay is allowed to enter-the press-box before the filled mold is removed and replaced by another.

The crank F is mounted on the end of a shaft, G, and motion is 'imparted to it from the central arbor,B, by bevelgear H I. v B y the action ot' the crank-pin on the slotted levers Z2 Z2 the motion of the central shaft, B, is transmitted to the gate and plunger with the least possible loss by friction.

' The pressbox U -is provided with a gate, m, 1n front, which can be opened or closed by means-ot' a hand-levend. By means of this gate stones or other'impurities which may nd their way into the press-box can be removed instantaneously and without stoppingthe motion ofthe press. I

The front of the pressbox is hinged, and can be.- thrown open Whenever it maybe desirable to obtain free access to the same.

l claim as new and desire to secure by Letters Patent- 1. The slotted levers o? Zz and cog-wheelsi Z I or' their equivalents, -in combination with the grate j, plunger d, mixing-box A, and press-box C, constructed and operating substantially as and for the purpose set forth. l

2. The adjustable taper-ing slideyi, in combination with the lever i2, pins i3 or its equivalent, and plunger d, constructed and operating substantially as and for the purpose described 3. MThe rising and falling slide or gate m, in combination with the pressfbox G, constructed and operating substantially as and for the purpose specilied.'

4. The pusher E, arms f,'and rock-shaft 0,19 combination with the roller-platform D, and

-with the molds, constructed and operating'len'zi' stantially as and for .the purpose set forth. Y

' HENRY MARTIN.

i Witnesses'z" p GEO. M. SfrnAItNs, HORACE rH. KNAPP. 

